既読

1. Origins, structure, and basic meaning

• Structure: 既読, read きどく, combines already 既 with read 読 to mark a completed reading state.
• Basic usage: It marks that a message has been opened or read, as in 連絡に既読が付く.

2. Common pitfalls and similar expressions

• Scope and context
  • 既読になる only marks a read status; it does not guarantee 返事が来る or agreement with the content.